<script setup>
import { ref, reactive } from 'vue'
const msg = ref('hello2')
const obj = reactive({
  name: '张三',
  age: 10
})
const fn = () => {
  return 666
}
</script>

<template>
  <h1>{{ msg }}</h1>
  <h2>我叫{{ obj.name }},今年{{ obj.age }}</h2>
  <h3>我是fn我的返回值是{{ fn() }}</h3>
</template>

<style scoped></style>
